Triturator



(No Model.)

L. SHERMAN'.

- TRITURATOR. No. 383,020. Patented May 15, 1888.

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dimm' l l 7C V I "NITE STATES LEVIS SHERMAN, OF MILWAUKEE, `WISCONSINe TRITURAT'OR.

srncrrrcnrronferming part of Letters Patent No. 383,020, dated May 1s, laas.

Application led January 11, 188'?. Serial No. 223,902. (No model.)

To all whom it may concern;

Beitknown that I, Lnwis SHERMAN, of Milwaukee, in the county of Milwaukee, and inthe State of i/Visconsin, have invented certain new and useful Improvements in Triturators; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to triturating devices; and it consists in certain peculiarities of construction, as will be fully set forth hereinafter, and pointed out in the claims.

In the drawings, Figure 1 is a vertical section of one form of my device. Fig. 2 is aplan view of the same. Fig. 3 is a plan view, and Fig. 4. is a detail sectional view of another form of the same. v

A represents the base, having a step, B, for the upright shaft or spindle C, which supports the mortar D, and which spindle carries a pulley,E, by means of which power is applied to rotate the said mortar, a plate, F, being made fast to said spindle and carrying lugs a a, with screw-threaded perforations, through which screw-bolts b b pass and bear against thelower part of said mortar, which latter rests on the plate F.

Gr is a table or counter through which the spindle C passes, and H is the platform of. a housing which'surrounds the mortar, the said platform being preferably on a lower plane than the top of the mortar.

I is a spider(preferablya metal casting) eX tending over the top of the mortar, having in the illustration given four horizontal arms, (though the number may be more or less,) whose ends are bent downward to rest on the platform H, or other support, below, and to which they may be made fast by screws, as shown, or otherwise. The under sides of the arms of the spider are grooved out to receive segmental plates K, (preferably of porcelain or earthenware,) whose upper edges are slipped into the described grooves and secured th erein by cement, or otherwise,v forming partitions free from the inner surface of the mortar, though in close proximity thereto.

L L represent the pestles,which are without handles, and in the preferred form illustrated in the drawings are circular disks flattened at the bottom and rounded attop and bottom at their peripheries.

The operation of my device will be readily' understood from the foregoing description, The material to be triturated and the loose independent stemlcss pestles are placed in the mortar, a certain number of these pestles-eas three, four, or morebeing placed in the space between each two of the described segmental plates, and then power is applied to revolve the mortar. Under some circumstances it may be desirable to more closely confine the pestles in their original positions, to prevent their piling one on top of another in the rapid revolution of the mortar; and to accomplish this I may add the devices shown in Figs. 3 and 4, wherein I represent additional division or separating plates M M, whose rounded edges are adjacent to the inner side of the mortar, but which only extend part way acrossthe space between the segmental plates K K, and whose upper edges are secured in grooves in the under side of arms N N, which may be hinged to the platform H, as shown at O, so that these plates M may be lifted out of the way when not needed.

Of course the spider and plates K may be all in one pice, if desired, and the same is true ofthe arms N and plates M; but I prefer to make them as described, though it is obvious that all the plates could form part of, be attached to, or suspended from a common spider without departing from the spirit of my invention.

I-Iaving thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-e- 1. The combination, in a triturating-machine, of a revolving mortar, a spider, aseries of stationary division-plates suspended thereL from within the mortar, a series of independent sternless pestles, and a series of stationary separatingplates adjacent to the inner side surface of the mortar and extending only part way across the space between each two of the described stationary divisionplates.

2. The combination, in a triturating-ma chine, of a revolving mortar, a housing surrounding the same, a spider above the mortar and secured to the upper platform of the housing, a series of stationary division-plates secured to and depending from the spider within the mortar and meeting at the center thereof,

IOO

aseries of independentstemless pestleslocated I tionary division-plates suspended within the Within the spaces between the said divisonsame, free from contact with said mortar or its l5 plates, a series of arms hinged to the housingshaft, and a seriesof flattened circular triturat A platform and projecting over the mortar, and ing-disks loosely resting in said mortar.

5 aseries ofstatonary separating-plates secured In testimony that I claim the foregoing I to said arms and suspended within the mortar have hereunto set my hand, at Milwaukee, in

adjacent to its inner side surface. the county of Milwaukee and State of VViscon- 2o 3. The combination, with a revolving morsin, in the presence of two witnesses. tar, of a series of trituratingdisks orstemless 1o pestles, flattened at the bottom, loosely resting LEWIS SHERMAN therein. Witnesses:

4. The combination, in a triturating-ma- H. G. UNDERwooD, chine, of a revolving mortar, a series of sta- 1 WM. SCHMIDTBAUER. 

